src/common/defaults.hpp

   1 /*
   2  * Copyright (C) 2011 EfficiOS Inc.
   3  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-only
   7  *
   8  */
   9
  10 #ifndef _DEFAULTS_H
  11 #define _DEFAULTS_H
  12
  13 #include <common/macros.hpp>
  14
  15 #include <pthread.h>
  16
  17 /* Default unix group name for tracing. */
  18 #define DEFAULT_TRACING_GROUP "tracing"
  19
  20 /*
  21  * This value is defined in the CTF specification (see
  22  * git://git.efficios.com/ctf.git in the file
  23  * common-trace-format-specification.txt.
  24  */
  25 #define DEFAULT_METADATA_NAME "metadata"
  26
  27 /* Environment variable to set session daemon binary path. */
  28 #define DEFAULT_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
  29
  30 /* Environment variable to set man pager binary path. */
  31 #define DEFAULT_MAN_BIN_PATH_ENV "LTTNG_MAN_BIN_PATH"
  32
  33 /* Default man pager binary path. */
  34 #define DEFAULT_MAN_BIN_PATH "/usr/bin/man"
  35
  36 /* Default trace output directory name */
  37 #define DEFAULT_TRACE_DIR_NAME "lttng-traces"
  38
  39 /* Default size of a hash table */
  40 #define DEFAULT_HT_SIZE 4
  41
  42 /* Default session daemon paths */
  43 #define DEFAULT_HOME_DIR         "/tmp"
  44 #define DEFAULT_UST_SOCK_DIR     DEFAULT_HOME_DIR "/ust-app-socks"
  45 #define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
  46 #define DEFAULT_TRACE_OUTPUT     DEFAULT_HOME_DIR "/lttng"
  47
  48 /* Default directory where the trace are written in per domain */
  49 #define DEFAULT_KERNEL_TRACE_DIR "kernel"
  50 #define DEFAULT_UST_TRACE_DIR    "ust"
  51
  52 /* Subpath for per PID or UID sessions. */
  53 #define DEFAULT_UST_TRACE_PID_PATH "pid"
  54 #define DEFAULT_UST_TRACE_UID_PATH "uid/%d/%u-bit"
  55
  56 /*
  57  * Default session name for the lttng command line. This default value will
  58  * get the date and time appended (%Y%m%d-%H%M%S) to it.
  59  */
  60 #define DEFAULT_SESSION_NAME "auto"
  61
  62 /* Default consumer paths */
  63 #define DEFAULT_CONSUMERD_FILE "lttng-consumerd"
  64
  65 /* Default consumer paths */
  66 #define DEFAULT_CONSUMERD_RUNDIR "%s"
  67
  68 /* Kernel consumer path */
  69 #define DEFAULT_KCONSUMERD_PATH          DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
  70 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/command"
  71 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/error"
  72
  73 /* UST 64-bit consumer path */
  74 #define DEFAULT_USTCONSUMERD64_PATH          DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
  75 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/command"
  76 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/error"
  77
  78 /* UST 32-bit consumer path */
  79 #define DEFAULT_USTCONSUMERD32_PATH          DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
  80 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/command"
  81 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/error"
  82
  83 /* Relayd path */
  84 #define DEFAULT_RELAYD_RUNDIR "%s"
  85 #define DEFAULT_RELAYD_PATH   DEFAULT_RELAYD_RUNDIR "/relayd"
  86
  87 #define DEFAULT_RELAYD_MIN_FD_POOL_SIZE 100
  88 /*
  89  * The file descriptor pool size needs a reserve buffer to accommodates the
  90  * indirect use of short-lived file descriptors. For instance, glibc will
  91  * create a socket (and thus, use an fd) during calls to gethostname() or
  92  * when querying the user's group. Other calls also probably make use of
  93  * short-lived FDs.
  94  *
  95  * The theoritical maximal reserve corresponds to the number of threads as,
  96  * in the worst case, they could all be making such calls.
  97  *
  98  * This value must be less than DEFAULT_RELAYD_MIN_FD_POOL_SIZE.
  99  */
 100 #define DEFAULT_RELAYD_FD_POOL_SIZE_RESERVE 10
 101
 102 /* Default lttng run directory */
 103 #define DEFAULT_LTTNG_HOME_ENV_VAR            "LTTNG_HOME"
 104 #define DEFAULT_LTTNG_FALLBACK_HOME_ENV_VAR   "HOME"
 105 #define DEFAULT_LTTNG_RUNDIR                  CONFIG_LTTNG_SYSTEM_RUNDIR
 106 #define DEFAULT_LTTNG_HOME_RUNDIR             "%s/.lttng"
 107 #define DEFAULT_LTTNG_SESSIOND_PIDFILE        "lttng-sessiond.pid"
 108 #define DEFAULT_LTTNG_SESSIOND_AGENTPORT_FILE "agent.port"
 109 #define DEFAULT_LTTNG_SESSIOND_LOCKFILE       "lttng-sessiond.lck"
 110
 111 /* Default probes list */
 112 #define DEFAULT_LTTNG_KMOD_PROBES "LTTNG_KMOD_PROBES"
 113
 114 /* Default extra probes list */
 115 #define DEFAULT_LTTNG_EXTRA_KMOD_PROBES "LTTNG_EXTRA_KMOD_PROBES"
 116
 117 /* Default unix socket path */
 118 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK               DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
 119 #define DEFAULT_HOME_CLIENT_UNIX_SOCK                 DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
 120 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK               DEFAULT_LTTNG_RUNDIR "/sessiond-health"
 121 #define DEFAULT_HOME_HEALTH_UNIX_SOCK                 DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
 122 #define DEFAULT_GLOBAL_NOTIFICATION_CHANNEL_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/sessiond-notification"
 123 #define DEFAULT_HOME_NOTIFICATION_CHANNEL_UNIX_SOCK \
 124         DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-notification"
 125
 126 /* Default consumer health unix socket path */
 127 #define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
 128 #define DEFAULT_HOME_USTCONSUMER32_HEALTH_UNIX_SOCK \
 129         DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd32/health"
 130 #define DEFAULT_GLOBAL_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd64/health"
 131 #define DEFAULT_HOME_USTCONSUMER64_HEALTH_UNIX_SOCK \
 132         DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd64/health"
 133 #define DEFAULT_GLOBAL_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/kconsumerd/health"
 134 #define DEFAULT_HOME_KCONSUMER_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_HOME_RUNDIR "/kconsumerd/health"
 135
 136 /* Default relay health unix socket path */
 137 #define DEFAULT_GLOBAL_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/relayd/health-%d"
 138 #define DEFAULT_HOME_RELAY_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_HOME_RUNDIR "/relayd/health-%d"
 139
 140 /* Default daemon configuration file path */
 141 #define DEFAULT_SYSTEM_CONFIGPATH     \
 142         CONFIG_LTTNG_SYSTEM_CONFIGDIR \
 143         "/lttng"
 144
 145 #define DEFAULT_DAEMON_CONFIG_FILE       "lttng.conf"
 146 #define DEFAULT_DAEMON_HOME_CONFIGPATH   DEFAULT_LTTNG_HOME_RUNDIR "/" DEFAULT_DAEMON_CONFIG_FILE
 147 #define DEFAULT_DAEMON_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" DEFAULT_DAEMON_CONFIG_FILE
 148
 149 /* Default session configuration file path */
 150 #define DEFAULT_SESSION_PATH "sessions"
 151 /* Auto load session in that directory. */
 152 #define DEFAULT_SESSION_CONFIG_AUTOLOAD       "auto"
 153 #define DEFAULT_SESSION_HOME_CONFIGPATH       DEFAULT_LTTNG_HOME_RUNDIR "/" DEFAULT_SESSION_PATH
 154 #define DEFAULT_SESSION_SYSTEM_CONFIGPATH     DEFAULT_SYSTEM_CONFIGPATH "/" DEFAULT_SESSION_PATH
 155 #define DEFAULT_SESSION_CONFIG_FILE_EXTENSION ".lttng"
 156 #define DEFAULT_SESSION_CONFIG_XSD_FILENAME   "session.xsd"
 157 #define DEFAULT_SESSION_CONFIG_XSD_PATH       CONFIG_LTTNG_SYSTEM_DATADIR "/xml/lttng/"
 158 #define DEFAULT_SESSION_CONFIG_XSD_PATH_ENV   "LTTNG_SESSION_CONFIG_XSD_PATH"
 159
 160 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK     DEFAULT_LTTNG_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 161 #define DEFAULT_HOME_APPS_UNIX_SOCK       DEFAULT_LTTNG_HOME_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 162 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "/" LTTNG_UST_WAIT_FILENAME
 163 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH   DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "-%d"
 164
 165 /*
 166  * Value taken from the hard limit allowed by the kernel when using setrlimit
 167  * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
 168  */
 169 #define DEFAULT_POLL_SIZE 65535
 170
 171 /*
 172  * Format is %s_%d respectively channel name and CPU number. Eigth bytes
 173  * are added here to add space for the CPU number. I guess 2^8 CPUs is more
 174  * than enough. We might end up with quantum computing in a cell phone when
 175  * reaching this limit.
 176  */
 177 #define DEFAULT_STREAM_NAME_LEN (LTTNG_SYMBOL_NAME_LEN + 8)
 178
 179 /* Default channel attributes */
 180 #define DEFAULT_CHANNEL_NAME "channel0"
 181 /* Default JUL domain channel name. */
 182 #define DEFAULT_JUL_CHANNEL_NAME "lttng_jul_channel"
 183 /* Default JUL tracepoint name. This is a wildcard for the JUL domain. */
 184 #define DEFAULT_JUL_EVENT_COMPONENT "lttng_jul"
 185 #define DEFAULT_JUL_EVENT_NAME      DEFAULT_JUL_EVENT_COMPONENT ":*"
 186
 187 /* Default log4j domain channel name. */
 188 #define DEFAULT_LOG4J_CHANNEL_NAME "lttng_log4j_channel"
 189 /* Default log4j tracepoint name. This is a wildcard for the log4j domain. */
 190 #define DEFAULT_LOG4J_EVENT_COMPONENT "lttng_log4j"
 191 #define DEFAULT_LOG4J_EVENT_NAME      DEFAULT_LOG4J_EVENT_COMPONENT ":*"
 192
 193 /* Default Python domain channel name. */
 194 #define DEFAULT_PYTHON_CHANNEL_NAME "lttng_python_channel"
 195 /* Default Python tracepoint name. This is a wildcard for the python domain. */
 196 #define DEFAULT_PYTHON_EVENT_COMPONENT "lttng_python"
 197 #define DEFAULT_PYTHON_EVENT_NAME      DEFAULT_PYTHON_EVENT_COMPONENT ":*"
 198
 199 #define DEFAULT_CHANNEL_OVERWRITE       (-1)
 200 #define DEFAULT_CHANNEL_TRACEFILE_SIZE  CONFIG_DEFAULT_CHANNEL_TRACEFILE_SIZE
 201 #define DEFAULT_CHANNEL_TRACEFILE_COUNT CONFIG_DEFAULT_CHANNEL_TRACEFILE_COUNT
 202
 203 #define _DEFAULT_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_CHANNEL_SUBBUF_SIZE
 204 #define _DEFAULT_CHANNEL_OUTPUT      LTTNG_EVENT_MMAP
 205
 206 /* Metadata channel defaults. */
 207 #define DEFAULT_METADATA_SUBBUF_SIZE  CONFIG_DEFAULT_METADATA_SUBBUF_SIZE
 208 #define DEFAULT_METADATA_SUBBUF_NUM   CONFIG_DEFAULT_METADATA_SUBBUF_NUM
 209 #define DEFAULT_METADATA_CACHE_SIZE   CONFIG_DEFAULT_METADATA_CACHE_SIZE
 210 #define DEFAULT_METADATA_SWITCH_TIMER 0
 211 #define DEFAULT_METADATA_READ_TIMER   0
 212 #define DEFAULT_METADATA_OVERWRITE    0
 213 #define DEFAULT_METADATA_OUTPUT       LTTNG_EVENT_MMAP
 214
 215 /* Kernel has different defaults */
 216
 217 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
 218 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE
 219 /*
 220  * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
 221  * Update help manually if override.
 222  */
 223 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM
 224 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
 225 #define DEFAULT_KERNEL_CHANNEL_OUTPUT           LTTNG_EVENT_SPLICE
 226 #define DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER     CONFIG_DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER
 227 #define DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER    CONFIG_DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER
 228 #define DEFAULT_KERNEL_CHANNEL_READ_TIMER       CONFIG_DEFAULT_KERNEL_CHANNEL_READ_TIMER
 229 #define DEFAULT_KERNEL_CHANNEL_LIVE_TIMER       CONFIG_DEFAULT_KERNEL_CHANNEL_LIVE_TIMER
 230 #define DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT
 231
 232 /* User space defaults */
 233
 234 /* Must be a power of 2 */
 235 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE
 236 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE
 237 /* Must be a power of 2. Update help manuall if override. */
 238 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM
 239 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM
 240 /* See lttng-ust.h enum lttng_ust_output */
 241 #define DEFAULT_UST_PID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
 242 #define DEFAULT_UST_UID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
 243 /* Timers in usec. */
 244 #define DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER  CONFIG_DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER
 245 #define DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER  CONFIG_DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER
 246 #define DEFAULT_UST_PID_CHANNEL_LIVE_TIMER    CONFIG_DEFAULT_UST_PID_CHANNEL_LIVE_TIMER
 247 #define DEFAULT_UST_UID_CHANNEL_LIVE_TIMER    CONFIG_DEFAULT_UST_UID_CHANNEL_LIVE_TIMER
 248 #define DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER
 249 #define DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER
 250
 251 #define DEFAULT_UST_PID_CHANNEL_READ_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_READ_TIMER
 252 #define DEFAULT_UST_UID_CHANNEL_READ_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_READ_TIMER
 253
 254 #define DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT
 255 #define DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT
 256
 257 /*
 258  * Default timeout value for the sem_timedwait() call. Blocking forever is not
 259  * wanted so a timeout is used to control the data flow and not freeze the
 260  * session daemon.
 261  */
 262 #define DEFAULT_SEM_WAIT_TIMEOUT 30 /* in seconds */
 263
 264 /* Default bind addresses for network services. */
 265 #define DEFAULT_NETWORK_CONTROL_BIND_ADDRESS CONFIG_DEFAULT_NETWORK_CONTROL_BIND_ADDRESS
 266 #define DEFAULT_NETWORK_DATA_BIND_ADDRESS    CONFIG_DEFAULT_NETWORK_DATA_BIND_ADDRESS
 267 #define DEFAULT_NETWORK_VIEWER_BIND_ADDRESS  CONFIG_DEFAULT_NETWORK_VIEWER_BIND_ADDRESS
 268 #define DEFAULT_AGENT_BIND_ADDRESS           CONFIG_DEFAULT_AGENT_BIND_ADDRESS
 269
 270 /* Default network ports for trace streaming support. */
 271 #define DEFAULT_NETWORK_CONTROL_PORT CONFIG_DEFAULT_NETWORK_CONTROL_PORT
 272 #define DEFAULT_NETWORK_DATA_PORT    CONFIG_DEFAULT_NETWORK_DATA_PORT
 273 #define DEFAULT_NETWORK_VIEWER_PORT  CONFIG_DEFAULT_NETWORK_VIEWER_PORT
 274
 275 /* Agent registration TCP port range. */
 276 #define DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN
 277 #define DEFAULT_AGENT_TCP_PORT_RANGE_END   CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_END
 278
 279 /* Number of buckets in the event notifier error count map. */
 280 #define DEFAULT_EVENT_NOTIFIER_ERROR_COUNT_MAP_SIZE \
 281         CONFIG_DEFAULT_EVENT_NOTIFIER_ERROR_COUNT_MAP_SIZE
 282
 283 /*
 284  * If a thread stalls for this amount of time, it will be considered bogus (bad
 285  * health).
 286  */
 287 #define DEFAULT_HEALTH_CHECK_DELTA_S  20
 288 #define DEFAULT_HEALTH_CHECK_DELTA_NS 0
 289
 290 /*
 291  * Wait period before retrying the lttng_data_pending command in the lttng
 292  * stop command of liblttng-ctl.
 293  */
 294 #define DEFAULT_DATA_AVAILABILITY_WAIT_TIME_US 200000 /* usec */
 295
 296 /*
 297  * Wait period before retrying the lttng_consumer_flushed_cache when
 298  * the consumer receives metadata.
 299  */
 300 #define DEFAULT_METADATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
 301
 302 /*
 303  * The usual value for the maximum TCP SYN retries time and TCP FIN timeout is
 304  * 180 and 60 seconds on most Linux system and the default value since kernel
 305  * 2.2 thus using the highest value. See tcp(7) for more details.
 306  */
 307 #define DEFAULT_INET_TCP_TIMEOUT 180 /* sec */
 308
 309 /* Maximum payload size for a control connection */
 310
 311 #define DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE \
 312         CONFIG_DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE
 313
 314 /*
 315  * Default receiving and sending timeout for an application socket.
 316  */
 317 #define DEFAULT_APP_SOCKET_RW_TIMEOUT  CONFIG_DEFAULT_APP_SOCKET_RW_TIMEOUT
 318 #define DEFAULT_APP_SOCKET_TIMEOUT_ENV "LTTNG_APP_SOCKET_TIMEOUT"
 319
 320 #define DEFAULT_UST_STREAM_FD_NUM 2 /* Number of fd per UST stream. */
 321
 322 #define DEFAULT_SNAPSHOT_NAME     "snapshot"
 323 #define DEFAULT_SNAPSHOT_MAX_SIZE 0 /* Unlimited. */
 324
 325 /* Suffix of an index file. */
 326 #define DEFAULT_INDEX_FILE_SUFFIX ".idx"
 327 #define DEFAULT_INDEX_DIR         "index"
 328
 329 /* Default lttng command live timer value in usec. */
 330 #define DEFAULT_LTTNG_LIVE_TIMER CONFIG_DEFAULT_LTTNG_LIVE_TIMER
 331
 332 /* Default runas worker name */
 333 #define DEFAULT_RUN_AS_WORKER_NAME "lttng-runas"
 334
 335 /* Default LTTng MI XML namespace. */
 336 #define DEFAULT_LTTNG_MI_NAMESPACE "https://lttng.org/xml/ns/lttng-mi"
 337
 338 /* Default thread stack size; the default mandated by pthread_create(3) */
 339 #define DEFAULT_LTTNG_THREAD_STACK_SIZE 2097152
 340
 341 /* Default maximal size of message notification channel message payloads. */
 342 #define DEFAULT_MAX_NOTIFICATION_CLIENT_MESSAGE_PAYLOAD_SIZE 65536
 343
 344 /* Default maximal size of trace archive location. */
 345 #define DEFAULT_MAX_TRACE_ARCHIVE_LOCATION_PAYLOAD_SIZE 65536
 346
 347 /* Default maximal size of message notification channel message payloads. */
 348 #define DEFAULT_CLIENT_MAX_QUEUED_NOTIFICATIONS_COUNT 100
 349
 350 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ENV           "LTTNG_RELAYD_TCP_KEEP_ALIVE"
 351 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME"
 352 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT_ENV \
 353         "LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT"
 354 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL_ENV \
 355         "LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL"
 356 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD_ENV \
 357         "LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD"
 358 #define DEFAULT_LTTNG_RELAYD_DISALLOW_CLEAR_ENV "LTTNG_RELAYD_DISALLOW_CLEAR"
 359
 360 #define DEFAULT_LTTNG_RELAYD_WORKING_DIRECTORY_ENV "LTTNG_RELAYD_WORKING_DIRECTORY"
 361
 362 /*
 363  * Name of the intermediate directory used to rename the trace chunk of a
 364  * session's first rotation.
 365  */
 366 #define DEFAULT_CHUNK_TMP_OLD_DIRECTORY         ".tmp_old_chunk"
 367 #define DEFAULT_CHUNK_TMP_NEW_DIRECTORY         ".tmp_new_chunk"
 368 #define DEFAULT_ARCHIVED_TRACE_CHUNKS_DIRECTORY "archives"
 369 #define DEFAULT_UNLINKED_FILES_DIRECTORY        ".unlinked"
 370
 371 /*
 372  * Default timer value in usec for the rotate pending polling check on the
 373  * relay when a rotation has completed on the consumer.
 374  */
 375 #define DEFAULT_ROTATE_PENDING_TIMER CONFIG_DEFAULT_ROTATE_PENDING_TIMER
 376
 377 /*
 378  * Returns the default subbuf size.
 379  *
 380  * This function depends on a value that is set at constructor time, so it is
 381  * unsafe to call it from another constructor.
 382  */
 383 size_t default_get_channel_subbuf_size();
 384
 385 /*
 386  * Returns the default metadata subbuf size.
 387  *
 388  * This function depends on a value that is set at constructor time, so it is
 389  * unsafe to call it from another constructor.
 390  */
 391 size_t default_get_metadata_subbuf_size();
 392
 393 /*
 394  * Returns the default subbuf size for the kernel domain.
 395  *
 396  * This function depends on a value that is set at constructor time, so it is
 397  * unsafe to call it from another constructor.
 398  */
 399 size_t default_get_kernel_channel_subbuf_size();
 400
 401 /*
 402  * Returns the default subbuf size for the UST domain per PID.
 403  *
 404  * This function depends on a value that is set at constructor time, so it is
 405  * unsafe to call it from another constructor.
 406  */
 407 size_t default_get_ust_pid_channel_subbuf_size();
 408
 409 /*
 410  * Returns the default subbuf size for the UST domain per UID.
 411  *
 412  * This function depends on a value that is set at constructor time, so it is
 413  * unsafe to call it from another constructor.
 414  */
 415 size_t default_get_ust_uid_channel_subbuf_size();
 416
 417 /*
 418  * Get the default pthread_attr to use on thread creation.
 419  *
 420  * Some libc, such as musl, don't honor the limit set for the stack size and use
 421  * their own empirically chosen static value. This function checks if the
 422  * current stack size is smaller than the stack size limit and if so returns a
 423  * pthread_attr_t pointer where the thread stack size is set to the soft stack
 424  * size limit.
 425  */
 426 pthread_attr_t *default_pthread_attr();
 427
 428 #endif /* _DEFAULTS_H */